STEM: Gravity

What is the primary role of gravity in the universe?

• To push objects away from each other

• To pull objects toward each other

• To create light

• To stop planets from moving

How does the strength of gravity between two objects change?

• It increases with distance

• It decreases with mass

• It increases with mass and decreases with distance

• It remains constant regardless of mass or distance

What is the difference between mass and weight?

• Mass changes with location, weight does not

• Weight is the amount of matter, mass is the gravitational force

• Mass is constant, weight changes with gravity

• Weight is measured in kilograms, mass in newtons

Why do objects in orbit, like the moon, maintain a stable orientation with one side always facing Earth?

• Because of the gravity gradient effect

• Due to Earth's magnetic field

• Because of the moon's atmosphere

• Due to solar winds

What is the purpose of NASA's GRACE mission?

• To measure Earth's temperature

• To detect changes in Earth's gravity

• To map the stars

• To study the sun's gravitational pull